Septic Systems in Gallia County, OH

Regulations, costs, soil data & local providers

Pop. 29,220 ~24% on septic ~2,805 septic homes Well drained soil

Septic pumping in Gallia County, Ohio costs $250-$500 (avg $350). A new septic system installation costs $5,050-$10,100. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 2,805 homes in this county use septic systems.

Septic System Costs in Gallia County

ServiceLowAverageHigh
Pumping / Cleaning$250$350$500
Routine Inspection$200$250$350
Real Estate Inspection$350$500$700
Minor Repair$650$900$4,400
Conventional Installation$5,050$7,200$10,100
Aerobic System Installation$9,450$13,500$18,900
Drainfield Replacement$5,050$7,200$10,100
Perc Test$750$1,100$1,550

Cost estimates based on regional market data for Gallia County, Ohio. Actual costs depend on system type, site conditions, and provider.

Soil & Septic Suitability in Gallia County

Drainage Class
Well drained
Hydrologic Group
D
Unique Soil Types
79
Avg Bedrock Depth
3.8 ft

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Bethesda 1156 Well drained D
Fairpoint 1005 Well drained D
Gilpin 859 Well drained C
Rarden 621 Moderately well drained D
Pinegrove 525 Excessively drained A

Septic Tank Absorption Field Suitability

USDA NRCS rates soil suitability for septic absorption fields across this county:

Not Limited (Good)0%
Somewhat Limited3.2%
Very Limited96.8%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Gallia County

Monitoring Wells
1
Avg Depth to Water
29.7 ft
Median Depth
30.5 ft
Shallowest Recorded
20.6 ft

Water table depths in this county are generally favorable for conventional septic systems.

Source: USGS National Water Information System. Based on 48 measurements from monitoring wells.

Septic Regulations & Permits in Gallia County

State Regulatory Body
Ohio Department of Health
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
No
Advanced Treatment Required
In designated areas

Local health districts issue permits. Sewage Treatment System (STS) rules updated 2015.

Contact the Gallia County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Gallia County

How much does septic pumping cost in Gallia County?
Septic pumping in Gallia County, Ohio typically costs between $250 and $500, with an average of $350. Costs vary by tank size (1,000-1,500 gallons is typical), ease of access, distance from the pumping company, and how full the tank is. Most homeowners should pump their tank every 3-5 years.
How much does a new septic system cost in Gallia County?
A conventional septic system installation in Gallia County typically costs $5,050-$10,100. An aerobic treatment unit (ATU) costs $9,450-$18,900. Given the predominantly well drained soils in this area, some sites may require alternative system types. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Gallia County?
Yes. Virtually all counties in Ohio require a permit before installing, repairing, or replacing a septic system. The permit process typically involves a soil evaluation or percolation test, system design by a licensed professional, application to the county health department, and one or more inspections during installation. Contact the Gallia County health department for current requirements and fees.
What soil types are in Gallia County and how do they affect septic systems?
Gallia County has predominantly Bethesda, Fairpoint, Gilpin soils. The dominant drainage class is Well drained with hydrologic group D. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 3.2% as "Somewhat Limited", and 96.8% as "Very Limited".
How often should I pump my septic tank in Gallia County?
The EPA recommends pumping your septic tank every 3-5 years for a typical household. The exact frequency depends on tank size, household size, and water usage. A 1,000-gallon tank serving a family of 4 should generally be pumped every 3 years. Some counties in Ohio have mandatory pumping schedules — check with your local health department.
Can I install a conventional septic system in Gallia County?
It depends on your specific site. USDA soil data shows that 96.8% of soils in Gallia County are rated "Very Limited" for septic absorption fields, while only 0% are "Not Limited." This means many properties will require alternative systems such as mound systems, pressure distribution systems, or aerobic treatment units. A percolation test ($750-$1550) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Gallia County?
A well-maintained septic system in Gallia County typically lasts 25-30 years, though some components may need attention sooner. The concrete septic tank itself can last 40+ years, while the drainfield — the most critical and expensive component — usually lasts 15-25 years depending on soil conditions (Gallia County has predominantly well drained soils). Regular pumping every 3-5 years and avoiding excess water usage are the two most effective ways to extend system life.

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Quick Facts

Population29,220
Est. Septic Homes2,805
Avg Pumping Cost$350
Drainage ClassWell drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $250-$500
Inspection: $200-$350
Repair: $650-$4,400
Installation: $5,050-$10,100

Data last updated: 2026-04-13